Temperature and Light Intensity Dependence of Polymer Solar Cells with MoO3 and PEDOT:PSS as a Buffer Layer

We analyzed the electrical characteristics of polymer solar cells with different huller layers between. the anode and the active layer. The current-voltage characteristics of the solar cells were measured tire range from 200 K to 350 K at illumination intensities from 1 to 100 mW/cm(2). Devices structure with ITO/buffer layer/poly (3-hexylthiophene) (P3IIT): [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM)/LiF/Al - buffer layer being molybdenum Oxide (MoO3) or poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) - showed different electronic transport behaviors with temperature change A :strong temperature dependence of short circuit current density of ITO/PEDOT:PSS/P3HT:PCBM/LiP/Al solar cells indicates that the device is limited by the transport. properties of the hole injection layer, PEDOT:PSS. A thermally - activated transport; of photo - generated charge carriers. influenced by recombination with shallow traps at the interlace. describes the variation of the photo current.